--- product_id: 2286090 title: "Sightmark 12Ga Boresight with Red Laser" brand: "sightmark" price: "β‚±4983" currency: PHP in_stock: true reviews_count: 13 category: "Sightmark" url: https://www.desertcart.ph/products/2286090-sightmark-12ga-boresight-with-red-laser store_origin: PH region: Philippines --- # 5mW Class IIIA Red Laser 3x AG13 batteries included Durable brass/aluminum build Sightmark 12Ga Boresight with Red Laser **Brand:** sightmark **Price:** β‚±4983 **Availability:** βœ… In Stock ## Summary > 🎯 Lock your sights, save your shots, own the range. ## Quick Answers - **What is this?** Sightmark 12Ga Boresight with Red Laser by sightmark - **How much does it cost?** β‚±4983 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/2286090-sightmark-12ga-boresight-with-red-laser) ## Best For - sightmark enthusiasts ## Why This Product - Trusted sightmark brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Endure:** Rugged brass/aluminum construction withstands recoil and rough handling without losing accuracy. - β€’ **Ammo-Saving Efficiency:** Minimize costly cartridge waste by aligning sights quickly and accurately. - β€’ **Compact & Travel-Ready:** Lightweight, pocket-sized design fits easily in your gear for zeroing on the go. - β€’ **Plug-and-Play Simplicity:** No switches or fiddlingβ€”just insert batteries, load like a shell, and zero with confidence. - β€’ **Pinpoint Precision Every Time:** 5mW red laser projects a crisp 2-inch target at 100 yards for flawless zeroing. ## Overview The Sightmark 12Ga Boresight with Red Laser is a precision chamber-loaded laser tool designed for 12 gauge shotguns. Featuring a 5mW Class IIIA red laser that projects a 2-inch dot at 100 yards, it ensures fast, accurate zeroing while reducing ammunition waste. Built with durable brass and aluminum materials, it withstands recoil and rough use. Powered by three AG13 batteries (included), this compact device requires no on/off switch and fits seamlessly into the shotgun chamber like a regular shell, making it an essential accessory for hunters, competitive shooters, and law enforcement professionals seeking reliable sight alignment. ## Description Perfect for hunters, competitive shooters and LE, the Sightmark 12Ga Boresight delivers exceptional accuracy for your 12Ga shotgun. At 100 yards, the device will project a 2-inch image on paper, saving you money on ammunition. Includes a carrying case, three (3) AG13 batteries, and instructions. Review: Works great. The larger AG13 alkaline batteries last longer than the AG5 batteries for the smaller caliber Sightmarks - I have four of the Sightmark laser boresights - the 12 gauge, 9mm, 7.62x39mm, and .223. I had used a Bushnell laser boresight before getting this set of chamber loaded laser boresights. The Bushnell is the kind that you stick into the muzzle end of the gun, fitted with an arbor matched to the barrel size. The problem with this device was that the arbors never fit quite right - they were always either too tight or too loose, plus you had to try to seat the body of the boresight in the center of the opening of the barrel (or muzzle brake) in order to properly align the center axis of the boresight with the center axis of the barrel. This rarely if ever happened just right as the slightest tilt in the seating of this boresight in the barrel would take it off the center axis so that rotating the laser would cause the laser light to mark out a small circle that was several MOA in diameter rather than being dead centered. Ugh. Of course with these chamber loaded laser boresights, there is also the potential for the lasers to be mis-aligned off the center axis. Plus there is the potential for the boresight to not fit the chamber properly. The key is to find a brand that has a measure of quality control so that you aren't stuck with these problems. I read through a lot of reviews before deciding on Sightmark. It is definitely not the cheapest out there. There are so many different brands and generic versions of these chamber loaded laser boresights now that almost look alike, with many much cheaper than the Sightmark. However, it was clear from reading the reviews that as the prices went down, so did the quality control. Several of these cheaper brands came with complaints that the lasers were not aligned to the center axis (resulting in the laser painting a circle as it rotates in the chamber) or that they did not fit properly in the chambers and so would either get stuck or wiggle. I have this theory that the really cheap laser boresights must be factory seconds or some such. I considered the Osprey line with the adjustable arbors, which saves money by allowing you to use one laser bore sight for different calibers. But, the reviews indicated that hassling with arbors would have an effect on accuracy and reliability. I almost got the Firefield, which seemed to have a similar number of decent reviews. Ultimately I decided against it because the entire line is made of an aluminum shell, and I think the brass shell of the Sightmark will hold up better. It should be noted, however, that the 12 gauge Sitemark is made out of aluminum, unlike the others, and is only painted a brass color. The biggest complaint against all of these laser boresighters are the frequent DOA batteries and poor battery life. The Sightmarks all come with alkaline button cell batteries. The small caliber ones (9mm, 7.62mm, .223) come with two AG5 batteries while the 12 gauge came with three AG13 (LR44) batteries. To get you all confused, the printed information on the back of the packaging for the 7.62mm and .223 says you can use 3 AG3 batteries in place of the 2 AG5 batteries (since the AG3 is a thinner battery with the same 7.9mm diameter), while the printed info for the 12 gauge says you can use 2 AG5 or 3 AG13 batteries. This is flat out incorrect since 2 AG5 batteries are too small to fit into the 12 gauge Sightmark battery chamber. Confused? Go to wikipedia and look up the article "List of battery sizes". Scroll down to the section titled "Silver oxide and alkaline cells". The table lists all the different names for each battery, their dimensions, and their mAh power rating. Note how the silver oxide batteries contain 1-1/2 to two times as much energy as the alkaline batteries. So the key is to go out and get some silver oxide button batteries, size SG5 for the AG5 powered Sightmarks and SG13 for the AG13 powered lasers. And don't go to your nearest retail store, since that will cost you an arm and a leg. Google shop for these batteries online. I found two Made in China "brands" one called Vinnic and another by Chung Pak Battery Works which were pretty cheap. The names aren't important, since I'm sure they will change rapidly. Just remember to get some silver oxide batteries online at the same time you are getting these Sightmark bore sights. How well did these Sightmarks work? The very first time I used one (the 7.62x39mm), I plugged in the included AG5 alkaline batteries and the resulting laser light was exceedingly weak. My initial reaction was that this was a bad laser. Then I remembered the silver oxide batteries I had gotten. When I switched out the batteries, the laser suddenly glowed brightly. Later, when this set of silver batteries finally wore down, the laser light faded again. That's a sign to change batteries. The larger AG13 alkaline batteries for the 12gauge shotgun boresight worked reasonably well and are still working as of this writing. Not surprising, since these batteries pack a lot more energy than the small AG5 batteries. As many have noted, the Sightmarks do not have an on-off switch. Once the batteries are screwed in the laser light is on! This is just as well, since the bore sights have to flush fit inside the chamber of the barrel and endure having the bolt and firing pin slammed into them. But you do have to have a plan of action ready so as to not run down your batteries. With one pair of SG5 silver oxide batteries, I was able to adjust the sights for about four guns, each taking about 5-10 minutes. So I am guesstimating a battery life of about 30 minutes with a fresh pair of SG5 silver batteries (the Sightmark packaging claims up to an hour of battery life - hah!). All of the Sightmarks have fit in well, none have gotten stuck (so far), and none have had off-center lasers. These chamber loaded Sightmark boresighters make it easy to dial in a scope, and for fixed sights, they help confirm the aim points. They are much better than the muzzle loaded bore sights, although the total cost is a lot more since they are ammo caliber specific. Review: Easy to use and does the trick - Personally, these "in the bore" sights are the only kind I'll use when possible because they are just so easy. I got this to sight in my Bushnell Trophy TRS-25 1xRed Dot Sight Riflescope and it works great. All you do is open it up, put in the little batteries, and screw it shut. Once closed, the laser comes on. Then load it as you'd load a shotshell. Sight your stuff in, and cycle the action to eject it. There's no on-off switch but then there's no room. It actually sits in the gun where a round would normally. As such there isn't any fiddling, it is accurate right off. Only two downsides, but neither are anything that can be fixed in something of this design: 1) Short battery. Laser diodes chew up battery and these ones are small. So use it, and then take it out. Don't leave it on and play with it unless you like buying lots of batteries. This is just a consequence of the small size. You can't drop AAs in something that small, so it has very little battery power. 30 minutes or so, an hour at most. 2) Not visible in bright sunlight. This is because higher class, more powerful, lasers require a key interlock according to the FDA and you couldn't have that on something that goes in the firearm. So it is as bright as you get from a red laser diode in that class. Don't worry, it is still perfectly visible indoors in regular light, you don't have to be in a darkened room or anything. However you aren't taking it to an outdoor range and making any use of it there. Personally I'd recommend only getting the "ammo sized" boresights for any caliber of gun that you can find them. Yes you do need one per caliber, but they are so much easier and less fiddly than the ones that screw in to the end of the barrel. ## Features - <5mW 632-650nm Class IIIA Red Laser: Precision boresighting with a safe, visible reference point. Align sights accurately with this low-power output device, ensuring greater zeroing accuracy for enhanced performance. - Precision Accuracy: This boresighting tool offers exceptional precision, ensuring that your sights or optics align precisely. It eliminates guesswork and enhances accuracy, making it an invaluable asset for zeroing. - Durable Bore Sight: Built for repeated use, ensuring precise alignment and calibration. Withstands recoil and rough handling during zeroing. Maintains accuracy over time, essential for enthusiasts and professionals. - Precision Zeroing, Less Waste: Swiftly aligns sights to bore, minimizing cartridge waste. Saves time and costs, an ideal solution for hunters. - Easy to pack and travel: Its small and lightweight design make it a convenient and portable accessory for shooters who require efficient zeroing and improved accuracy in the field. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000T405DY | | Best Sellers Rank | #105,052 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #48 in Airsoft Gun Lasers #12,301 in Hunting Equipment | | Brand | Sightmark | | Brand Name | Sightmark | | Color | black | | Compatible Devices | Handgun, Shotgun | | Customer Reviews | 4.4 out of 5 stars 743 Reviews | | Field Of View | 2 inches | | Global Trade Identification Number | 00810119010063 | | Included Components | Carrying case, Battery pack | | Item Dimensions L x W x H | 9"L x 6"W x 1"H | | Item Display Dimensions | 9 x 6 x 1 inches | | Item Display Weight | 16 ounces | | Item Type Name | Boresight with Red Laser | | Item Weight | 22.68 g | | Lens Color | red | | Manufacturer | Sellmark Corporation | | Manufacturer Part Number | SM39007 | | Material Type | Brass | | Model Name | Shotgun | | Model Number | SM39007 | | Mounting Type | Picatinny Mount | | Number of Items | 1 | | Product Dimensions | 9"L x 6"W x 1"H | | Product Style | 12Ga | | Reticle Type | Red Dot | | Sport | Airsoft, Hunting | | Sport Type | Airsoft, Hunting | | Style | 12Ga | | UPC | 810119010063 | | Unit Count | 1 Ounce | | Warranty Description | Limited Lifetime Warranty | ## Product Details - **Brand:** Sightmark - **Color:** black - **Compatible Devices:** Shotgun - **Item Weight:** 0.05 Pounds - **Material:** Brass - **Mounting Type:** Picatinny Mount - **Night vision:** No - **Product Dimensions:** 9"L x 6"W x 1"H - **Sport:** Airsoft, Hunting - **Style:** 12Ga ## Images ![Sightmark 12Ga Boresight with Red Laser - Image 1](https://m.media-amazon.com/images/I/51pgFmFYfWL.jpg) ![Sightmark 12Ga Boresight with Red Laser - Image 2](https://m.media-amazon.com/images/I/91bLSRtOkJL.jpg) ![Sightmark 12Ga Boresight with Red Laser - Image 3](https://m.media-amazon.com/images/I/81-QQDoAKXL.jpg) ![Sightmark 12Ga Boresight with Red Laser - Image 4](https://m.media-amazon.com/images/I/713Rjflz5UL.jpg) ![Sightmark 12Ga Boresight with Red Laser - Image 5](https://m.media-amazon.com/images/I/81KpgUsVZqL.jpg) ## Questions & Answers **Q: How far does the laaser go?** A: There is a brick wall at the end of the street that is > 400' from me and I can see it as if it were at 10'. It will go far beyond that. **Q: Does this fit 6.5 Creedmoor?** A: No - whoever answered this question as a YES must have been mistaken, this does not correctly fit in a 6.5 creedmoor. chamber. There is a slight wiggle that will cause the laser to hit the wall of the barrel and not work correctly at all. Do not buy this for a 6.5 creedmoor. **Q: is this sight good for 6.5 creedmoor?** A: Yes this will chamber in the 6.5 Creedmoor. **Q: What batteries are used for both the 12Ga and the 9mm??** A: The 12 ga version came with 3 "LR44" batteries l don't have the 9mm so can't help you there. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great. The larger AG13 alkaline batteries last longer than the AG5 batteries for the smaller caliber Sightmarks *by D***D on September 25, 2011* I have four of the Sightmark laser boresights - the 12 gauge, 9mm, 7.62x39mm, and .223. I had used a Bushnell laser boresight before getting this set of chamber loaded laser boresights. The Bushnell is the kind that you stick into the muzzle end of the gun, fitted with an arbor matched to the barrel size. The problem with this device was that the arbors never fit quite right - they were always either too tight or too loose, plus you had to try to seat the body of the boresight in the center of the opening of the barrel (or muzzle brake) in order to properly align the center axis of the boresight with the center axis of the barrel. This rarely if ever happened just right as the slightest tilt in the seating of this boresight in the barrel would take it off the center axis so that rotating the laser would cause the laser light to mark out a small circle that was several MOA in diameter rather than being dead centered. Ugh. Of course with these chamber loaded laser boresights, there is also the potential for the lasers to be mis-aligned off the center axis. Plus there is the potential for the boresight to not fit the chamber properly. The key is to find a brand that has a measure of quality control so that you aren't stuck with these problems. I read through a lot of reviews before deciding on Sightmark. It is definitely not the cheapest out there. There are so many different brands and generic versions of these chamber loaded laser boresights now that almost look alike, with many much cheaper than the Sightmark. However, it was clear from reading the reviews that as the prices went down, so did the quality control. Several of these cheaper brands came with complaints that the lasers were not aligned to the center axis (resulting in the laser painting a circle as it rotates in the chamber) or that they did not fit properly in the chambers and so would either get stuck or wiggle. I have this theory that the really cheap laser boresights must be factory seconds or some such. I considered the Osprey line with the adjustable arbors, which saves money by allowing you to use one laser bore sight for different calibers. But, the reviews indicated that hassling with arbors would have an effect on accuracy and reliability. I almost got the Firefield, which seemed to have a similar number of decent reviews. Ultimately I decided against it because the entire line is made of an aluminum shell, and I think the brass shell of the Sightmark will hold up better. It should be noted, however, that the 12 gauge Sitemark is made out of aluminum, unlike the others, and is only painted a brass color. The biggest complaint against all of these laser boresighters are the frequent DOA batteries and poor battery life. The Sightmarks all come with alkaline button cell batteries. The small caliber ones (9mm, 7.62mm, .223) come with two AG5 batteries while the 12 gauge came with three AG13 (LR44) batteries. To get you all confused, the printed information on the back of the packaging for the 7.62mm and .223 says you can use 3 AG3 batteries in place of the 2 AG5 batteries (since the AG3 is a thinner battery with the same 7.9mm diameter), while the printed info for the 12 gauge says you can use 2 AG5 or 3 AG13 batteries. This is flat out incorrect since 2 AG5 batteries are too small to fit into the 12 gauge Sightmark battery chamber. Confused? Go to wikipedia and look up the article "List of battery sizes". Scroll down to the section titled "Silver oxide and alkaline cells". The table lists all the different names for each battery, their dimensions, and their mAh power rating. Note how the silver oxide batteries contain 1-1/2 to two times as much energy as the alkaline batteries. So the key is to go out and get some silver oxide button batteries, size SG5 for the AG5 powered Sightmarks and SG13 for the AG13 powered lasers. And don't go to your nearest retail store, since that will cost you an arm and a leg. Google shop for these batteries online. I found two Made in China "brands" one called Vinnic and another by Chung Pak Battery Works which were pretty cheap. The names aren't important, since I'm sure they will change rapidly. Just remember to get some silver oxide batteries online at the same time you are getting these Sightmark bore sights. How well did these Sightmarks work? The very first time I used one (the 7.62x39mm), I plugged in the included AG5 alkaline batteries and the resulting laser light was exceedingly weak. My initial reaction was that this was a bad laser. Then I remembered the silver oxide batteries I had gotten. When I switched out the batteries, the laser suddenly glowed brightly. Later, when this set of silver batteries finally wore down, the laser light faded again. That's a sign to change batteries. The larger AG13 alkaline batteries for the 12gauge shotgun boresight worked reasonably well and are still working as of this writing. Not surprising, since these batteries pack a lot more energy than the small AG5 batteries. As many have noted, the Sightmarks do not have an on-off switch. Once the batteries are screwed in the laser light is on! This is just as well, since the bore sights have to flush fit inside the chamber of the barrel and endure having the bolt and firing pin slammed into them. But you do have to have a plan of action ready so as to not run down your batteries. With one pair of SG5 silver oxide batteries, I was able to adjust the sights for about four guns, each taking about 5-10 minutes. So I am guesstimating a battery life of about 30 minutes with a fresh pair of SG5 silver batteries (the Sightmark packaging claims up to an hour of battery life - hah!). All of the Sightmarks have fit in well, none have gotten stuck (so far), and none have had off-center lasers. These chamber loaded Sightmark boresighters make it easy to dial in a scope, and for fixed sights, they help confirm the aim points. They are much better than the muzzle loaded bore sights, although the total cost is a lot more since they are ammo caliber specific. ### ⭐⭐⭐⭐⭐ Easy to use and does the trick *by J***L on October 23, 2011* Personally, these "in the bore" sights are the only kind I'll use when possible because they are just so easy. I got this to sight in my Bushnell Trophy TRS-25 1xRed Dot Sight Riflescope and it works great. All you do is open it up, put in the little batteries, and screw it shut. Once closed, the laser comes on. Then load it as you'd load a shotshell. Sight your stuff in, and cycle the action to eject it. There's no on-off switch but then there's no room. It actually sits in the gun where a round would normally. As such there isn't any fiddling, it is accurate right off. Only two downsides, but neither are anything that can be fixed in something of this design: 1) Short battery. Laser diodes chew up battery and these ones are small. So use it, and then take it out. Don't leave it on and play with it unless you like buying lots of batteries. This is just a consequence of the small size. You can't drop AAs in something that small, so it has very little battery power. 30 minutes or so, an hour at most. 2) Not visible in bright sunlight. This is because higher class, more powerful, lasers require a key interlock according to the FDA and you couldn't have that on something that goes in the firearm. So it is as bright as you get from a red laser diode in that class. Don't worry, it is still perfectly visible indoors in regular light, you don't have to be in a darkened room or anything. However you aren't taking it to an outdoor range and making any use of it there. Personally I'd recommend only getting the "ammo sized" boresights for any caliber of gun that you can find them. Yes you do need one per caliber, but they are so much easier and less fiddly than the ones that screw in to the end of the barrel. ### ⭐⭐⭐⭐⭐ I've found these in the chamber type of laser bore sights to work much better than the universal types which hang out from the . *by K***S on September 6, 2015* I own several different laser bore sights by Sightmark, in a number of different calibers. I also have one of their universal laser bore sights. I've found all of their products to work quite well so far. I've found these in the chamber type of laser bore sights to work much better than the universal types which hang out from the muzzle. The machining on these in the chamber types by Sightmark is quite good. With the firearm firmly mounted in a heavy bench rest, I've rotated the sight to several positions in the chamber and seen very little change in the point of the dot even at 100 yards, which indicated to me not only a very good machining, but also a very good adjustment of the laser within the brass body. One thing to bear in mind with these sights are that while they do feature a rim like a standard cartridge, the sight is not meant to be removed from the chamber by means of the extractor and bolt. While you will get best results by gently letting the bolt close and push the sight snugly into the chamber, the sight will not simply fall out upon opening the bolt and again, it is not meant to be extracted like a standard cartridge. to remove it is best to open the bolt and keep it open while using a cleaning rod from the muzzle end to gently push the sight out from the chamber. While very well made and adjusted, these devices still have very slight variations from true center, which becomes more noticeable with distance as does the increase in the size of the dot. Yes, it is a laser but it is a laser diode, not a high end gas or sapphire rod laser, so the coherence of the beam is not 100% and the diameter will increase with distance. That isn't a negative though as it helps you to see the dot at distance with the naked eye. Try seeing the period of a sentence on a newspaper page 25 yards away with the naked eye and you'll get what I mean. Even with the increasing dot size at distance and a good spotting scope though it is best to use the laser bore sight in less than full daylight light levels. These laser bore sights are truly ideal for a shotgun though, as they give outstanding results at distances under 50 yards. With a 12 gauge shotgun you really aren't likely to be trying to hit dead center of a bullseye as you would with a rifle or pistol, let alone would you be doing so for a distance of 100 yards. If you are using this to set ghost ring sights, reflex/holographic or laser sights for use on a defensive shotgun however, the distance required is considerably less and the results of using this bore sight will be as close to perfect as you should want. Due to its size this laser bore sight probably could have used a single CR123 battery rather than three small AG13/357A, or LR 44 batteries that it requires, but it's not likely to be used often enough for that to be an issue. It also would be nice to have an on/off switch rather than having to remove the batteries, but again due to infrequent use it is not really much of an issue. It could have used a green laser which would have greater visibility at long distance or in full daylight, but for a shotgun the distance isn't an issue and a green laser would have driven the cost up to more than double what it is. ## Frequently Bought Together - Sightmark Shotgun Boresight with Red Laser - Sightmark Centerfire Boresight with Red Laser - Sightmark Pistol Boresight with Red Laser --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/2286090-sightmark-12ga-boresight-with-red-laser](https://www.desertcart.ph/products/2286090-sightmark-12ga-boresight-with-red-laser) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-09-04*